The described examples are based on real-life hydrological data and true and actual parameters of hydraulic engineering structures. Two hydraulic structures have been selected, considering the nature of ... więcej

The described examples are based on real-life hydrological data and true and actual parameters of hydraulic engineering structures. Two hydraulic structures have been selected, considering the nature of proposed analyses: the Buków Racibórz polder system and the Dobczyce reservoir. The discussion of these examples refers to the events of 2010. The first hydraulic structure has been selected due to material problems in obtaining clear information about its flood control capacity and effectiveness, the second structure has been chosen due to special events associated with its control in May 2010. The year 2010 was catastrophic for Poland due to numerous hydrological incidents, including floods. Major floods occurred three times within that year: in May, June and September. Those events confirmed that the flood control services and available measures were insufficient at all management levels of state and local government. The main deficiencies identified included an insufficient level of monitoring, insufficient skills in impounding structure control and a poor technical condition of flood control embankments. The control procedures applied in more than 80% of impounding structures during the flood of May 2010 failed to meet the conditions defined in the basic document binding on a reservoir manager – the Instructions for Water Management in a Reservoir, defining among others the rules for water discharge from reservoirs under flood conditions.